70A PWM Solar Charge Controller, 12V/24V

● PWM solar charge controller for sale, with maximum input voltage of 55V, a self-consumption rate of ≤10mA, and a maximum charge and discharge current of 70A. ● 12V/24V auto-detection. Overvoltage, overload, reverse polarity, and short-circuit protection, ensure safe operation. ● Intelligent circuit protection stabilises the output and increases efficiency by 30% for fast operation. ● Suited for use in RVs, boats, and remote cabins, providing power supply for lighting, appliances, and other electrical devices.
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⏱️ Delivery: 6-12 days
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Compatible with both 12V and 24V systems, 70A PWM solar charge controller features adjustable low voltage disconnect (LVD) and low voltage reconnect (LVR) settings, float voltage, and a boost charging function that activates when the battery voltage drops below 12V, boosting for 2 hours. The 70A controller provides comprehensive protection with battery overvoltage protection set at 16.5V, reverse connection protection, and load overcurrent protection that restarts every two minutes if necessary. Offers overvoltage, overload, reverse polarity, and short-circuit protection. Solar charge controller can be used in residential solar power systems, RVs, boats, and remote cabins, providing a stable power supply for lighting, appliances, and other electrical devices. It is also suitable for agricultural and industrial solar power installations.

70A PWM solar charge controller feature


  • Six intelligent safety protection: Prevent the charger from short-circuiting over-temperature overload, for safer battery charging.
  • Intelligent chip for easier operation, dual USB charging ports
  • Multi-protection, Intelligent power-off, DC output, green environmental protection


  1. Dual USB2.4A fast charging ports
  2. Good conductivity of pure copper terminals
  3. Graphic LCD screen with high definition display of device status
  4. Alloy Heat Dissipation Backplate: Rapid heat dissipation prevents circuits from heating up due to prolonged operation of the device.
70A PWM solar charge controller detail

PWM Solar Charge Controller Size

70A PWM solar charge controller size

Product Functions

70A pwm solar charge controller product functions


1 2 3 4 5
Solar Panel Batteries Load Overheating Digital Displays
6 7 8 9 10
Input Voltage Unit Sign Value Timer Settings Menu Return


System Voltage 12V/24V
Max. Input Voltage of solar panel 55V
Self-consumption ≤10mA
Max. Charge Current 70A
Max. Discharge Current 70A
LVD 11.0V ADJ 9V-12V;×2/24V
LVR 12.6V ADJ 11V-13.5V;×2/24V
Float Voltage 13.8V ADJ 13V-15V;×2/24V
Boost Charging 14.4V;×2/24V Battery Voltage less than 12V start boost charging 2 hours
Battery Over Voltage Protection 16.5V;×2/24V
Reverse Connection Protection yes
Load Over Current Protection Yes, each two minutes restart once
Temperature Compensation -24 mV /℃ for 12V system;×2/24V
Working Temperature -20℃~+55℃
Waterproof Grade IP32
Size 229.4mm×201mm×54.7mm
USB 5V 2.1A
DC Output 12V/24V
Net Weight 1.16kg
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Q1. Why is my controller not powering on?

This issue can be due to a poor or loose battery connection, a battery voltage that is too low, or a blown internal fuse. Ensure all battery connections are secure, check the battery voltage and charge if necessary, and inspect and replace the internal fuse if needed.

Q2. Why is the load not working?

This can be due to the load terminals being off, the load exceeding the controller’s capacity, or the load short circuit protection being activated. Check if the load terminals are on, ensure the load does not exceed the controller’s capacity, and reset the controller if needed.

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